Na. Parthasarathy (18 December 1932 – 13 December 1987), was a writer of Tamil historical novels from Tamil Nadu, India.^[1] In 1971, he was awarded the Sahitya Akademi Award for Tamil for his novel Samudhaya Veedhi.^[2] He was also a journalist who worked in Kalki, Dina Mani Kadhir and later ran a magazine called Deepam. He was known as Deepam Parthasarathy due to his magazine.^[3] He also published under various pet names like Theeran, Aravindan, Manivannan, Ponmudi, Valavan, Kadalazhagan, Ilampooranan and Sengulam Veerasinga Kavirayar.